Matt Wallis <m...@heligon.net> writes:
> But it doesn't work if I try to set the midiPanPosition inside a midi
> context block like this:
>
> \version "2.19.83"
>
> \include "english.ly"
> sopStaff = \new Staff = "sop" {
> \relative c' { e4 f g a }
> }
> altoStaff = \new Staff = "alto" {
> \relative c' { c4 d e f }
> }
> \score {
> <<
> \sopStaff
> \altoStaff
> >>
> \midi {
> \context Staff = "sop" {
> \set Staff.midiPanPosition = #1.0
> \set Staff.midiBalance = #1.0
> }
> \context Staff = "alto" {
> \set Staff.midiPanPosition = #-1.0
> \set Staff.midiBalance = #-1.0
> }
> }
> }
This is terrible. Really, really terrible. \context Staff = "xxx"
should never be allowed in an output block since setting name-specific
context defs is not supported and does not make sense, either. I'll see
whether I can stop the parser from accepting this abomination.
>
> Furthermore, the result of doing this is that both staffs are played
> through the left, and nothing on the right.
>
> Am I doing something wrong?
As a rule, changing syntax until something passes the parser instead of
working from documented syntax and examples is a bad idea. Most of the
time, you'll trigger error messages pinpointing the problem.
But sometimes there are oversights.
> I want to do the setting in the midi context block because I require
> different pan positions for a staff depending on which score it
> appears in.
Then create different variables/expressions for that purpose. But the
\midi block cannot sensibly differentiate between differently named
contexts.
--
David Kastrup
